You do have to be a rocket scientist to vie for the $10 million X-Prize. The challenge? Send a privately built rocket — with a passenger — into space, twice in 14 days. So far more than 20 teams have joined the competition. Join host Ira Flatow and guests for a look at the private space race. What does it take to send a rocket in to space? Is this the first step to a space tourism industry? Plus, we'll discuss launching a solar sail.